Ruby Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Ruby Interview Questions

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Explain class libraries in ruby.

How will you comment in ruby.

How to use ruby methods.

Tell me how you can list all routes for an application?

Please explain the three levels of access control for ruby methods?

Tell me what is the difference between ruby 1.9 and ruby 2.0?

Tell us how would you implement hash in ruby internally?

Tell me how can you declare a block in ruby?

Tell us what is the difference between dynamic and static scaffolding?

Tell us in ruby, it explains about the defined operator?

Tell me can you call a private method outside a ruby class using its object?

Please explain each of the following operators and how and when they should be used: ==, ===, eql?, Equal?

Do you know when self.up and self.down method is used?

Tell me what does ruby name refers to?

Tell me how would you freeze an object in ruby? Can you provide a simple example?

Un-Answered Questions { Ruby }

Mention what is the difference between a gem and a plugin in ruby?

Does hash use “ #==” or “#eql?” To compare hash keys?

Explain about the defined operator in ruby?

What are Ruby iterators?

Explain about Class variable and global variable?

Please explain what are some advantages of using ruby?

what is the difference between String and Symbol?

Explain the use of ensure statement in Ruby?

List some features of ruby?

Explain the difference between a single quote and double quote?

What is concatenating string in ruby. In how many ways you can create a concatenating string.

How do you handle exceptions in ruby code?

How to open a file in Ruby?

What is RubyGems in Ruby programming language?

Mention what is the difference between procs and blocks?

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